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RBC aggregation: laboratory data and models.

H J Meiselman1, B Neu, M W Rampling

  • 1Department of Physiology and Biophysics, Keck School of Medicine, 1333 San Pablo Street, MMR 626 Los Angeles, CA 90033, USA. meiselma@usc.edu

Indian Journal of Experimental Biology
|January 26, 2007
PubMed
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Red blood cell (RBC) aggregation, crucial for blood flow, is influenced by both the surrounding medium and the cells' intrinsic properties. Understanding RBC aggregability is key to comprehending blood viscosity and microvascular dynamics.

Area of Science:

  • Biophysics
  • Hematology
  • Physiology

Background:

  • Red blood cell (RBC) aggregation impacts blood viscosity and microvascular flow.
  • Historically, research focused on suspending medium composition affecting RBC aggregation.
  • Emerging evidence highlights the significant role of RBC cellular properties in aggregation.

Purpose of the Study:

  • To review the influence of RBC cellular properties on aggregation.
  • To explore factors affecting RBC aggregability.
  • To provide an overview of current developments in RBC aggregation mechanisms.

Main Methods:

  • Review of existing experimental evidence and literature.
  • Analysis of factors including donor variations, polymer-plasma interactions, and RBC age.

Related Experiment Videos

  • Discussion of enzymatic treatments and aggregation mechanisms.

    • Main Results:

    • RBC aggregability, the cell's intrinsic tendency to aggregate, significantly affects aggregation.
    • Variations in RBC aggregability can exceed those seen in pathological states.
    • Both cellular properties and medium composition influence RBC aggregation.

    Conclusions:

    • RBC cellular properties are critical determinants of RBC aggregation.
    • Further research into RBC aggregability is essential for understanding blood rheology.
    • This review synthesizes current knowledge on RBC aggregation mechanisms and influencing factors.